MRV offers three models of Ethernet SFPs for copper media applications. Two of the models support Gigabit Ethernet functionality, and the third one provides unique 10/100 Fast Ethernet solutions.

The SFP-GC-R model supports Gigabit Ethernet with a 1000Base-T interface, and it is designed for Layer 1 network devices that do not incorporate an Ethernet MAC. The SFP-GA-R is designed for use in Layer 2 and above devices such as switches and routers that do incorporate an Ethernet MAC. It supports Gigabit Ethernet with an auto-negotiating 1000Base-T interface. SFP-GC-R and SFP-GA-R models each support MDI/MDI-X auto-detection and jumbo packet sizes over 9,600 bytes.

Installed into MRV products with an available SFP port, the SFP-GC-R plug-ins provide a simple and cost-effective way to merge copper and fiber network segments.

The SFP-GA-R gives network administrators greater flexibility in configuring their SFP-enabled switches and routers, allowing them to use less expensive copper cabling and interfaces for links of 100 meters or less.

The SFP-GC-R and SFP-GA-R do not convert between edge devices of different speeds or duplex mode. Connected edge devices must operate at the same speed and duplex mode to communicate. An edge device that supports auto-negotiation may require specific interface settings for fixed Gigabit Ethernet speed and duplex mode operation.